Improvement in bessemer-converter bottoms



A. J'. HAWS.

BESSEMER CONVERTER BOTTOMS. No.188,899. Patented March 27,1877.

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EN Inl INVENTOR N. PETERS. FHOTO-LITMOGRAPHER. WASHINGTON. D C.

UNITED STATES PATENT OFFICE.

ANDREW J. VHAws, 0E JoHNsTowN, PENNSYLVANIA.

IMPROVEMENT IN BESSEMER-CONVERTER BOTTOMS.

Specification forming part of Letters Patent No. 188,899, dated March27, 1877; application filed December 529, 1876.

To all whom t may concern:

Be it known that I, ANDREW J. HAWS, of Johnstown, in the county ofCambria and State of Pennsylvania, have invented a certain new anduseful Improvement in Bessemer-Steel-Gonverter Bottoms, ot' which thefollowing is a specification My invention relates to a mode of attachingbricks which form the bottom of a Besse mer-steel converter, the saidbricks heilig constructed with lugs projecting down into the tuyere-box,and being constructed with longitudinal tuyere or blast openings,extending down through the said lugs.

The invention consistsin Securing the bricks to the tuyere-box by meansof clamps encircling the lugs hinged at one side and fastened by a screwat the other, so as to serve the combined purpose ot' fixing the bricks,and forming washers to close the joints between the lugs and the plateof the tuyere-box.

In the accompanying drawings, Figure 1 is an elevation ot' atuyerebrick, with the fastening applied. Fig. 2is an underside view ofthe same. Fig. 3 is a vertical section ot' the ent-ire bottom on asmaller scale, showing the bricks andl their fastenings in elevation,and omitting the lower part of the tuyere-box. Fig. 4 is an under sideView of one-half of the bottom, (omitting thelower part ofthetuyerebox,) also in a smaller scale.

A represents a brick made preferably of hexagon form in transversesection, as shown by the dotted lines in Fig. 2, so that any necessarynumber of' .the said bricks may be tted close together to form thebottom ota Bessemer-steel converter. c c are tuyere-openings in the saidbricks. B represents the upper plate ot' the tuyere-box, which may bemade in two parts, leaving an air chamber between. It will be observedthat the lug A of the brick A extends downward, so as to project Withinthe tuyere-box H to a sufiicient distance to receive clamp-rings C,which encircle the lugs A'. The said rings are hinged at c, and arepressed together at their extremities by bolts and nuts D E.

The clamp-rings thus engage beneath the top plate of the tuyere-box,fixing the bricks tirmly in position, and at the same time the clampsserve as washers t-o close the joints between the lugs and the top plateof the box. Separate washers may be added, if desired, to assist informing tight joints.

Having thus described my invention, the following is what I claim as newtherein, and desire to secure by Letters Patent:

The bricks A, provided with lugs A', in combination with clamp-ringsfitting around the said lugs, in the manner set forth.

ANDREW JACKSON HAWS.

Witnesses:

C. T. FRAZEE, .A. MONTGOMERY.

